Question

Briefly explain how the thermos flask help to prevent heat loss due to conduction, convection and radiation.

Answer 1

Explanation:The thermos flask consists of a double-walled glass vessel resting on a cork inside a metal or plastic case. The outer surface of its inner wall and the inner surface of its outer wall are silvered. This prevents heat transfer due to radiation.  The double-walled glass vessel and vacuum prevents heat loss by conduction.

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